/*
 * Copyright (C) 2006 The Android Open Source Project
 * Copyright (C) 2020 Agrui
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */


#ifndef MINDROID_OS_REGISTRANT_H_
#define MINDROID_OS_REGISTRANT_H_

#include <mindroid/os/Handler.h>
#include <mindroid/os/Message.h>
#include <mindroid/os/AsyncResult.h>

namespace mindroid {



class Registrant {

public:
    Registrant(Handler&    h, int what, void* obj);
    ~Registrant();

    void notifyRegistrant();
    
    void notifyResult(void* result);

    void notifyException(int errorCode);
    /**
     * This makes a copy of @param ar
     */
    void notifyRegistrant(AsyncResult& ar);

    void internalNotifyRegistrant (void* result, int errorCode);

    /**
     * NOTE: May return null if weak reference has been collected
     */
    Message* messageForRegistrant();

    Handler* getHandler() {
        return refH;
    }

public:
    Handler*            refH;

private:
    int                 what;
    void*               userObj;
};

} /* namespace mindroid */

#endif /* MINDROID_OS_REGISTRANT_H_ */

